Finding the Fourth Proportional to 1,218,308.72, 1,680,738.15 and 734,605.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218,308.72 : 1,680,738.15 = 734,605.14 : x
2. Step 2: Convert to fraction form
   1,218,308.72/1,680,738.15 = 734,605.14/x
3. Step 3: Cross multiply
   1,218,308.72x = 1,680,738.15 × 734,605.14
4. Step 4: Simplify right side
   1,218,308.72x = 1,234,678,883,984.09
5. Step 5: Solve for x
   x = 1,234,678,883,984.09/1,218,308.72
6. Step 6: Final answer
   x = 1,013,436.79